An edge-computing-based security camera adaptive anti-interference installation system

Abstract

This invention discloses an adaptive anti-interference installation system for security cameras based on edge computing, comprising a camera body, a pan-tilt unit, a sensor module, an edge computing unit, an anti-interference strategy library, and a drive controller. The camera body is fixed on the pan-tilt unit. The sensor module integrates vibration sensors, electromagnetic intensity sensors, and light sensors for detecting environmental interference signals. The edge computing unit is deployed locally to analyze video image quality and interference signals in real time, distinguishing between strong light, vibration, or electromagnetic interference types, and retrieving corresponding anti-interference action sets from the anti-interference strategy library. The drive controller drives the pan-tilt unit to perform physical displacement according to the control strategy, including horizontal deflection, vertical pitch, frequency-based vibration cancellation, or spherical spiral optimization movement. This invention achieves adaptive countermeasures against dynamic environmental interference after camera installation, significantly improving the long-term operational reliability and image quality of monitoring systems in complex environments.

Description

Technical Field

[0001] This invention relates to the field of security monitoring technology, and more specifically, to an adaptive anti-interference installation system for security cameras based on edge computing. Background Technology

[0002] In the deployment of security monitoring systems, the installation quality of cameras directly determines the image acquisition effect and system reliability. Traditional installation methods rely on manual experience for fixing, and once the installation is completed, the camera's posture and parameters are fixed.

[0003] However, the actual operating environment is dynamic and subject to various interference factors. For example, newly installed strong light sources or backlighting from sunrise and sunset can cause overexposure or glare; continuous vibrations caused by strong winds or heavy vehicles can blur the image; electromagnetic interference from proximity to high-voltage lines or high-power wireless equipment can cause signal loss or image striping. These interferences are often not present during installation and acceptance, but only appear over time. Once they occur, maintenance personnel need to rush to the site to readjust the physical angle of the camera bracket or replace the anti-interference cable, resulting in delayed response and high costs. Summary of the Invention

[0004] The problem to be solved by the present invention is to provide an edge computing-based adaptive anti-interference installation system for security cameras that is anti-interference, addressing the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an edge computing-based adaptive anti-interference installation system for security cameras, comprising: a camera body for acquiring video images; a pan-tilt unit for supporting and adjusting the physical posture of the camera body; the camera body being fixed on the pan-tilt unit; a sensor module for detecting interference signals in the environment where the camera body is located; the sensor module including a vibration sensor, an electromagnetic intensity sensor, and a light sensor; an edge computing unit deployed locally and electrically connected to the camera body and the sensor module, for receiving and analyzing video images and interference signals, distinguishing interference types, and generating corresponding control strategies; an anti-interference strategy library deployed within the edge computing unit, storing anti-interference action sets corresponding to different interference types; and a drive controller electrically connected to the edge computing unit and the pan-tilt unit, for driving the pan-tilt unit to perform physical displacement according to the control strategies.

[0006] Furthermore, the edge computing unit includes an image quality analysis module and an interference source localization module; the image quality analysis module is used to evaluate the peak signal-to-noise ratio and image jitter amplitude of the video stream in real time; when the index is lower than a preset threshold, the interference source localization module is triggered to work; the interference source localization module is used to fuse and analyze the incident light angle and intensity of the light sensor, the amplitude and frequency of the vibration sensor, and the field strength distribution of the electromagnetic intensity sensor to calculate the location of the main interference source.

[0007] Furthermore, in the anti-interference strategy library, when the interference type is strong light interference, the corresponding anti-interference action set includes: controlling the gimbal to perform horizontal deflection to change the angle between the shooting axis and the light source, and vertically tilting by a small angle to form a light-shielding area using the fixed structure on site; the execution priority of the anti-interference action set is: vertical tilt takes precedence over horizontal deflection.

[0008] Furthermore, in the anti-interference strategy library, when the interference type is vibration interference, the corresponding anti-interference action set includes: identifying the vibration frequency of the vibration sensor; if it is a high-frequency vibration higher than Hz, driving the high-frequency electromagnetic damping module built into the gimbal to perform frequency-matching vibration reduction; if it is a low-frequency vibration lower than Hz, alternately fine-tuning the azimuth and pitch angles of the gimbal until the resonance amplification coefficient detected by the vibration sensor is reduced to the minimum.

[0009] Furthermore, in the anti-interference strategy library, when the interference type is electromagnetic interference, the corresponding anti-interference action set includes: judging the interference intensity by the image signal loss or stripe distortion characteristics of the camera body; if the interference intensity is higher than a preset threshold, generating a spatial displacement command to drive the pan-tilt unit to move the camera body slowly on a spherical spiral trajectory with the current installation point as the center and the radius as a preset value; during the movement, the edge computing unit continuously records the electromagnetic intensity value of each station point, and finally controls the pan-tilt unit to position the camera body at the station point with the lowest electromagnetic intensity value.

[0010] Furthermore, the base of the gimbal is equipped with a quick-adjustment base, which includes a miniature electric push rod controlled by the drive controller and a locking mechanism. After the edge computing unit determines that all interference types have been eliminated, it generates a locking command. The drive controller controls the miniature electric push rod to drive the locking mechanism according to the locking command, thereby mechanically locking the current physical position.

[0011] Furthermore, the camera body and the pan-tilt unit are equipped with a servo motor. The first output shaft of the servo motor is connected to each other by a cylindrical body and a shaft that are inserted into each other. The cylindrical body has a sliding inner cavity that is slidably connected to the shaft. The front end of the shaft has a plum blossom piston located in the sliding inner cavity and slidably connected to it. The other end of the cylindrical body is connected to the servo motor. The camera body includes a transparent outer cover and a camera installed inside the transparent outer cover. The other end of the shaft is connected to the transparent outer cover. A vertical rod is provided on the pan-tilt unit. The outer wall of the transparent outer cover has a ring that surrounds the outer wall of the transparent outer cover. The transparent cover has a spiral groove, and the upper end of the vertical rod is located in the spiral groove. When the servo motor drives the transparent cover to rotate, the transparent cover moves away from or closer to the gimbal. A convex gear is installed on the transparent cover, and a rack is installed on the gimbal. The camera is spherical, and the outer wall of the camera has teeth that mesh with the convex gear. The convex gear includes two rings of teeth with different outer diameters, which mesh with the rack and the convex gear respectively. When the transparent cover moves away from or closer to the gimbal, it drives the convex gear to rotate, thereby driving the camera to rotate inside the transparent cover.

[0012] Furthermore, the transparent outer cover has a notch, and a sponge block is provided at the notch for easy wiping of the camera; the pan-tilt head is provided with an electric telescopic rod, and the pan-tilt head has a groove, in which a circular block is installed; the servo motor is a bidirectional motor, and the servo motor is mounted on the circular block; the circular block has an arc-shaped perforation, and the telescopic rod of the electric telescopic rod passes through the arc-shaped perforation corresponding to the sponge block; the second output shaft of the servo motor is provided opposite to the first output shaft, and the second output shaft passes through the circular block and meshes with a gear set provided at the bottom of the groove, so that when the servo motor is working, the number of rotations of the transparent outer cover is tens of times more than the number of rotations of the pan-tilt head.

[0013] Compared with existing technologies, the present invention has the following beneficial effects: multi-interference collaborative judgment and priority arbitration: the edge computing unit can simultaneously receive signals from three types of sensors: vibration, electromagnetic, and light, and avoid command conflicts between different anti-interference action sets through built-in interference type arbitration logic (e.g., strong light interference takes priority over electromagnetic interference, and electromagnetic interference takes priority over vibration interference); when multiple interferences occur concurrently, the system executes the corresponding anti-interference actions in sequence according to the preset priority order (strong light > electromagnetic > vibration), and re-evaluates the image quality after execution to ensure that usable monitoring images can still be output in complex and harsh environments.

[0014] Other advantages, objectives and features of the present invention will be apparent in part from the following description, and in part from the understanding of those skilled in the art through study and practice of the invention. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the module connection of an edge computing-based adaptive anti-interference installation system for security cameras.

[0016] Figure 2 This is a schematic diagram of the main body of the camera.

[0017] Figure 3 This is a schematic diagram of the first output shaft.

[0018] Figure 4 This is a schematic diagram of the circular block structure. Detailed Implementation

[0019] To make the technical means, creative features, objectives, and effects of this invention clearer and easier to understand, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments: This invention proposes an adaptive anti-interference installation system for security cameras based on edge computing. Its core lies in making the installation itself an intelligent entity capable of proactively adapting to its environment. The system mainly consists of a camera body 1, a pan-tilt unit 2, a sensor module 3, an edge computing unit 4, an anti-interference strategy library 5, and a drive controller 6. The camera body 1 is responsible for basic video acquisition; it is no longer rigidly locked to a fixed bracket but is instead fixed to a controllable pan-tilt unit 2. The pan-tilt unit has precise adjustment capabilities for azimuth and pitch angles, acting as the "hand" for performing physical anti-interference actions. The sensor module 3 is the system's perception layer, integrating vibration sensors, electromagnetic intensity sensors, and light sensors, enabling comprehensive perception of the three main types of physical interference that cause image degradation: vibration, electromagnetic waves, and harmful light.

[0020] Edge computing unit 4 is the brain of the entire system. Deployed locally on the camera, it is electrically connected to the camera body 1 and sensor module 3, avoiding the latency and bandwidth pressure of uploading massive video data to the cloud for analysis. Edge computing unit 4 contains image quality analysis module 41 and interference source localization module 42. Image quality analysis module 41 runs continuously in the background, calculating the peak signal-to-noise ratio and image jitter amplitude of the video stream in real time. Once it detects that the image quality has deteriorated below a preset threshold, it immediately wakes up interference source localization module 42. Module 42 acts like a detective, cross-analyzing the incident angle and intensity of the light sensor, the amplitude and frequency of the vibration sensor, and the field strength distribution data of the electromagnetic sensor to determine that "the current interference is mainly caused by strong light at an 85-degree angle". After finding the cause and location, edge computing unit 4 retrieves the corresponding anti-interference action set from anti-interference strategy library 5. Strategy library 5 is like an experienced engineer's manual, which has written fine-grained response actions for different types of interference.

[0021] For example, in response to strong light interference, its anti-interference action set does not simply turn away from the light source, but is more intelligent: it prioritizes controlling the gimbal 2 to perform a small vertical tilt, attempting to use the existing building eaves or pole caps above the mounting surface to form a light-shielding area; if this is ineffective, it then performs a horizontal deflection to change the angle between the shooting axis and the light source, achieving a balance between avoiding interference and maintaining the monitoring target range; in response to vibration interference, the system's processing is more refined; if the vibration sensor detects high-frequency vibrations above 10Hz, such as vibrations caused by a motor, it drives the high-frequency electromagnetic damping module 21 built into the gimbal 2 to perform frequency-matching vibration cancellation, just like using reverse sound waves to cancel noise; if it is low-frequency shaking below 10Hz, such as strong wind blowing the pole, the system will alternately fine-tune the azimuth and tilt angles of the gimbal to find the "resonance point" dead angle of this physical system until the resonance amplification factor is reduced to the minimum.

[0022] The system's solutions to electromagnetic interference are more creative in terms of spatial design; for example... Figure 4 As shown, when the camera image shows mosaic or stripes caused by strong electromagnetic fields, the system does not report an error and stop. Instead, it drives the pan-tilt unit 2 to make the camera body 1 slowly move and scan around a spherical spiral trajectory with a radius of tens of centimeters centered on the current mounting point. During the movement, the edge computing unit 4 continuously records the electromagnetic intensity value of each station point, draws a micro-environment electromagnetic field distribution map, and finally automatically stops the camera body 1 at the station point with the lowest electromagnetic intensity value and the best signal-to-noise ratio.

[0023] After the environmental changes subside and all types of interference have been eliminated, the system also takes into account long-term fixed reliability. The base of the gimbal 2 is equipped with a quick-adjustment base 7, which includes a miniature electric push rod 71 and a locking mechanism 72. The edge computing unit 4 sends a locking command, and the drive controller 6 controls the miniature electric push rod 71 to drive the locking mechanism 72, which will completely lock the currently found optimal physical position from a mechanical structure, ensuring that the system becomes a stable and reliable monitoring point after power failure or adjustment.

[0024] The camera body 1 and the pan-tilt unit 2 are equipped with a servo motor 3. The first output shaft of the servo motor 3 is connected to the cylinder 10 and the shaft 11 by interlocking parts. The cylinder 10 has a sliding inner cavity 9 that is slidably connected to the shaft 11. The front end of the shaft 11 has a plum blossom piston 8 located in the sliding inner cavity 9 and slidably connected to it. A certain space is formed between the plum blossom piston 8 and the bottom of the sliding inner cavity 9 so that the plum blossom piston 8 is always taut. The other end of the cylinder 10 is connected to the servo motor 3. The camera body 1 includes a transparent outer cover 5 and a camera installed in the transparent outer cover 5. The other end of the shaft 11 is connected to the transparent outer cover 5. The pan-tilt unit 2 is equipped with a vertical rod 15. The outer wall of the transparent outer cover 5 is provided with a ring around the transparent outer cover. The outer wall of the outer cover 5 has a spiral groove 12. The upper end of the vertical rod 15 is located in the spiral groove 12. When the servo motor 3 drives the transparent outer cover 5 to rotate, the transparent outer cover 5 moves away from or closer to the gimbal 2. A convex gear 14 is installed on the transparent outer cover 5. A rack 13 is installed on the gimbal 2. The camera is spherical. The outer wall of the camera has teeth that mesh with the convex gear 14. The convex gear 14 includes two rings of teeth with different outer diameters and meshes with the rack 13 and the convex gear 14 respectively. When the transparent outer cover 5 moves away from or closer to the gimbal 2, it drives the convex gear 14 to rotate, thereby driving the camera to rotate inside the transparent outer cover 5. The vertical rotation of the camera can be achieved by one servo motor 3.

[0025] Spherical spiral trajectory optimization to reduce electromagnetic interference: To address electromagnetic interference, the system adopts a spherical spiral trajectory movement strategy. Compared with traditional grid scanning or random movement methods, this trajectory can cover the maximum effective range in three-dimensional space within a limited time and locate the stationary point with the lowest electromagnetic intensity using the shortest path. Experiments show that in a uniform electromagnetic field environment, this strategy can move the camera body to a position where the field strength is reduced by more than 60% within 15 seconds, significantly improving the efficiency and accuracy of electromagnetic interference resistance.

[0026] The transparent outer cover 5 has a notch, at which a sponge block 17 is provided for facilitating the wiping of the camera; the pan-tilt head 2 is equipped with an electric telescopic rod 19, and the pan-tilt head 2 has a groove 6, in which a circular block 21 is installed. The circular block 21 has an arc-shaped perforation 20. The telescopic rod 18 of the electric telescopic rod 19 passes through the arc-shaped perforation 20 and corresponds to the sponge block 17. When locking is required, the telescopic rod 18 of the electric telescopic rod 19 passes through the arc-shaped perforation 20 and squeezes the sponge block 17 to lock the camera in contact with it; in addition, when the camera rotates relative to the transparent outer cover 5, the sponge block 17 wipes the lens 16 of the camera. The servo motor 3 is a bidirectional motor, and the servo motor 3 is mounted on the circular block. The second output shaft 4 of the servo motor 3 is arranged opposite to the first output shaft. The second output shaft 4 passes through the circular block 21 and meshes with the gear set arranged at the bottom of the groove 6, so that when the servo motor 3 is working, the number of rotations of the transparent cover 5 is more than tens of times the number of rotations of the gimbal 2. The horizontal rotation of the camera is achieved by the rotation of the circular block 21 when the second output shaft 4 rotates. By setting the number of rotations of the transparent cover 5 to be more than tens of times the number of rotations of the gimbal 2, the rotation is mainly to adjust the vertical pitch of the camera rather than the horizontal deflection. The drive controller 6 connects the servo motor 3 and the electric telescopic rod 19. The gimbal 2 is provided with a mounting cavity 22 for installation, which facilitates the installation of the gimbal 2 with other existing accessories.

[0027] The invention integrates self-cleaning and angle fine-tuning: Through the linkage design of servo motor 3, cylinder 10, shaft 11, spiral groove 12, convex gear 14, and rack, it achieves mechanical coordination between the rotation of transparent cover 5, lens cleaning 16, and camera angle fine-tuning. Specifically, when transparent cover 5 rotates and moves axially, the vertical rod 15 fixed on the gimbal 2 slides along the spiral groove 12, driving transparent cover 5 to generate relative friction with sponge block 17, automatically wiping the camera surface and solving the problem of lens dust accumulation. At the same time, the meshing of the convex gear and the rack drives the spherical camera to make precise relative rotation inside the transparent outer cover, realizing stepless fine adjustment of the monitoring angle. Moreover, this fine adjustment is independent of the overall coarse adjustment of the pan-tilt unit, improving the resolution of the angle adjustment. Through the differential gear set design (the second output shaft meshes with the gear set at the bottom of the groove), the number of rotations of the transparent outer cover is more than ten times the number of rotations of the pan-tilt unit. Thus, when the pan-tilt unit is rotated over a wide range, the transparent outer cover rotates at high speed to complete the cleaning, while the orientation of the pan-tilt unit 2 changes very little and does not affect the monitoring target.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An edge computing-based adaptive anti-interference installation system for security cameras, characterized in that: include: A camera body (1) is used to capture video images; A gimbal (2) is used to support and adjust the physical posture of the camera body (1); The camera body (1) is fixed on the pan-tilt unit (2); a sensor module (3) is used to detect interference signals in the environment where the camera body (1) is located; the sensor module (3) includes a vibration sensor, an electromagnetic intensity sensor and a light sensor; an edge computing unit (4) is deployed locally and electrically connected to the camera body (1) and the sensor module (3) to receive and analyze video images and interference signals, distinguish interference types and generate corresponding control strategies; an anti-interference strategy library (5) is deployed in the edge computing unit (4) and stores anti-interference action sets corresponding to different interference types; a drive controller (6) is electrically connected to the edge computing unit (4) and the pan-tilt unit (2) to drive the pan-tilt unit (2) to perform physical displacement according to the control strategy.

2. The edge computing-based adaptive anti-interference installation system for security cameras according to claim 1, characterized in that, The edge computing unit (4) includes an image quality analysis module (41) and an interference source localization module (42). The image quality analysis module (41) is used to evaluate the peak signal-to-noise ratio and image jitter amplitude of the video stream in real time. When the index is lower than a preset threshold, the interference source localization module (42) is triggered to work. The interference source localization module (42) is used to fuse and analyze the incident light angle and intensity of the light sensor, the amplitude and frequency of the vibration sensor, and the field strength distribution of the electromagnetic intensity sensor to calculate the location of the main interference source.

3. The edge computing-based adaptive anti-interference installation system for security cameras according to claim 1, characterized in that, In the anti-interference strategy library (5), when the interference type is strong light interference, the corresponding anti-interference action set includes: controlling the gimbal (2) to perform horizontal deflection to change the angle between the shooting axis and the light source, and vertical pitch by a small angle to form a light-shielding area using the fixed structure on site; the execution priority of the anti-interference action set is: vertical pitch takes precedence over horizontal deflection.

4. The edge computing-based adaptive anti-interference installation system for security cameras according to claim 1, characterized in that, In the anti-interference strategy library (5), when the interference type is vibration interference, the corresponding anti-interference action set includes: identifying the vibration frequency of the vibration sensor; if it is a high-frequency vibration higher than 10Hz, driving the high-frequency electromagnetic damping module (21) built into the gimbal (2) to perform frequency damping; if it is a low-frequency vibration lower than 10Hz, alternately fine-tuning the azimuth and pitch angles of the gimbal (2) until the resonance amplification coefficient detected by the vibration sensor is reduced to the minimum.

5. The edge computing-based adaptive anti-interference installation system for security cameras according to claim 1, characterized in that, In the anti-interference strategy library (5), when the interference type is electromagnetic interference, the corresponding anti-interference action set includes: judging the interference intensity by the image signal loss or stripe distortion characteristics of the camera body (1); if the interference intensity is higher than the preset threshold, a spatial displacement command is generated to drive the pan-tilt unit (2) to move the camera body (1) slowly on a spherical spiral trajectory with the current installation point as the center and the radius as the preset value; during the movement, the edge computing unit (4) continuously records the electromagnetic intensity value of each station point, and finally controls the pan-tilt unit (2) to position the camera body (1) at the station point with the lowest electromagnetic intensity value.

6. The edge computing-based adaptive anti-interference installation system for security cameras according to claim 1, characterized in that, The base of the gimbal (2) is equipped with a quick-adjustment base (7), which includes a miniature electric push rod (71) controlled by the drive controller (6) and a locking mechanism (72). After the edge computing unit (4) determines that all interference types have been eliminated, it generates a locking command. The drive controller (6) controls the miniature electric push rod (71) to drive the locking mechanism (72) according to the locking command, so as to mechanically lock the current physical position.

7. The edge computing-based adaptive anti-interference installation system for security cameras according to claim 1, characterized in that, The camera body (1) has a servo motor (3) on the pan-tilt unit (2). The first output shaft of the servo motor (3) is connected to the cylinder (10) and the shaft (11) which are inserted into each other. The cylinder (10) has a sliding inner cavity (9) that is slidably connected to the shaft (11). The front end of the shaft (11) has a plum blossom piston (8) located in the sliding inner cavity (9) and slidably connected to it. The other end of the cylinder (10) is connected to the servo motor (3). The camera body (1) consists of a transparent outer cover (5) and a camera installed in the transparent outer cover (5). The other end of the shaft (11) is connected to the transparent outer cover (5). The pan-tilt unit (2) has a vertical rod (15). The outer wall of the transparent outer cover (5) has a ring around the transparent outer cover (5). The outer wall of the transparent cover (5) is spirally grooved (12). The upper end of the vertical rod (15) is located in the spiral groove (12). When the servo motor (3) drives the transparent cover (5) to rotate, the transparent cover (5) moves away from or closer to the gimbal (2). A convex gear (14) is installed on the transparent cover (5). A rack (13) is provided on the gimbal (2). The camera is spherical. The outer wall of the camera is provided with teeth that mesh with the convex gear (14). The convex gear (14) includes two rings of teeth with different outer diameters and meshes with the rack (13) and the convex gear (14) respectively. When the transparent cover (5) moves away from or closer to the gimbal (2), the convex gear (14) rotates, thereby driving the camera to rotate inside the transparent cover (5).

8. The edge computing-based adaptive anti-interference installation system for security cameras according to claim 7, characterized in that, The transparent cover (5) has a notch, and a sponge block (17) for wiping the camera is provided at the notch; the pan-tilt head (2) is provided with an electric telescopic rod (19), the pan-tilt head (2) is provided with a groove (6), a circular block (21) is installed in the groove (6), the circular block (21) is provided with an arc-shaped perforation (20), the telescopic rod (18) of the electric telescopic rod (19) passes through the arc-shaped perforation (20) and corresponds to the sponge block (17), the servo motor (3) is a bidirectional motor, the servo motor (3) is installed on the circular block, the second output shaft (4) of the servo motor (3) is provided opposite to the first output shaft, the second output shaft (4) passes through the circular block and meshes with the gear set provided at the bottom of the groove (6) so that when the servo motor (3) works, the number of rotations of the transparent cover (5) is more than tens of times that of the pan-tilt head (2).

Images